Tamoxifen as my third try, with Arimidex and Letrazole not being great for me. I can't survive without some sort of decent sleep and the insomnia with the first two was awful. Arimidex made me incredibly sad. Tamoxifen side effects so far are the weight gain and hairloss. Both more than I've experienced before. The hair loss is incredible and after only 2 months on it I can block the shower drain on hair wash day and I literally shed throughout the house as I walk. I have long hair too so it's a bit of a mess. I wonder if anyone else has experienced this and has any suggestions on how it can be combatted? I'm on Biotin and have just started Silica as well.